You 2 need to get a instant messenger and just quit p***in people off with this crap. P.S. I use prefetch and like it you are just annoying as f***in hell!
Easy go here http://ryanvm.msfn.org/ and get the pre-built package that is .net and sp1 it is fully silent and can be used any of the unnatended types. I use svcpack.ini. Just call it like so = netfxsp1.exe